PUERTO RICO. Bank of Porto-Rico in San Juan. 5 Dollars, 1907. P-47sp. Specimen Proof. PMG Choice Uncirculated 64 Net. Note Unaffected by Issues on Card Stock; Printers Annotations; Foreign Substance. Printed by ABNC. Specimen Proof. This is the sole encapsulated example on PMGs pop report. PMG comments "Note Unaffected by Issues on Card Stock; Printers Annotations; Foreign Substance." PMG Pop 1/No Others Graded.